The Moths of Suffolk
1912 August Thorn, Ennomos quercinaria, (Hufnagel, 1767)

National Status : Local

Local Status : Resident (SMP Status 3)

Distribution and abundance : Local and infrequent

Habitats : Woodland, parkland, hedgerows, scrub and gardens

Flight Period : Single-brooded; mid-July to August

Larval foodplants : Pedunculate oak and possibly Sessile Oak, Also limes and elms.

Morley's Final Catalogue : Not a common moth, especially in the west of the County. Copdock at light in 1897 ( Hkg); distinctly rare at Ipswich in August 1893 (Mly); Waldringfield, Swefling, Aldeburgh, Beccles, Fritton in 1934, Flixton; Bungay at light in 1903 (Mn). Stowmarket and Bury before 1890.

Wingspan details : Forewing 18-22mm, Wingspan 42-50mm

Identification

Confusion species
    AdultLarge Thorn, Ennomos autumnaria
Canary-shouldered Thorn, Ennomos alniaria
Dusky Thorn, Ennomos fuscantaria
September Thorn, Ennomos erosaria

Compare confusion species
    Adult

Click to view full size image
Barnhamcross Common (28.vii.2001) © A Prichard

Flight chart
JFMAMJJASOND
75 100 8

Life history chart
JFMAMJJASOND
ova ova ova ova larva larva larvapupa pupaimago imago ova ova ova

Further Photographs

Click to view full size image
Woolpit, Suffolk (11.viii.2015) © Paul Bryant